I swear I searched for this issue. Found the exact issue twice on reddit, but oneguy couldnt get an answer & the other solved with a new engine. He even replaced the carb.
video of the same problem
Any thoughts would be appreciated.
Bike
Coleman CT200U-EX,
Tractor supply, Camo
Stock Hisun 196cc engine
2020 purchase
Issues
Start quickly with choke on, 3-5 pulls when cold, 1 when warm
Idles a little rough, but come on its not a BMW
Turn off choke, roll on throttle, bike stumbles & then dies
Can roll on power with choke, but no power
Only restarts with choke ON
If i lift the bike onto sidestand, will run at full throttle
Troubleshooting
Removed and cleaned carb
- Including pulled main jet (even tho obnoxiously "security" thread for one direction, ez-out bit worked wonders)
- Including fuel/air "plug" & jet
- Get good flow of carb cleaner thru all passages
- Cleaned float, float valve & float valve seat
Cleaned petcock
Checked fuel flow, good
To-do
- Add a fuel filter. Have but doesnt fit with linkage, need a smaller one
- Check shaft key didnt shear?
- Bad clutch?
- pull plug and see if oil in cylinder?
- f*&%ing gremlins?
video of the same problem
Any thoughts would be appreciated.
Bike
Coleman CT200U-EX,
Tractor supply, Camo
Stock Hisun 196cc engine
2020 purchase
Issues
Start quickly with choke on, 3-5 pulls when cold, 1 when warm
Idles a little rough, but come on its not a BMW
Turn off choke, roll on throttle, bike stumbles & then dies
Can roll on power with choke, but no power
Only restarts with choke ON
If i lift the bike onto sidestand, will run at full throttle
Troubleshooting
Removed and cleaned carb
- Including pulled main jet (even tho obnoxiously "security" thread for one direction, ez-out bit worked wonders)
- Including fuel/air "plug" & jet
- Get good flow of carb cleaner thru all passages
- Cleaned float, float valve & float valve seat
Cleaned petcock
Checked fuel flow, good
To-do
- Add a fuel filter. Have but doesnt fit with linkage, need a smaller one
- Check shaft key didnt shear?
- Bad clutch?
- pull plug and see if oil in cylinder?
- f*&%ing gremlins?